Mobile dual- wavelength Mie lidar

A mobile dual-wavelength Mie lidar(DWL) is introduced. The DWL can be used to measure the aerosol extinction coefficient profiles at 1 064 nm and 532 nm wavelength. The DWL system is composed of a transmission unit, a signal receiving unit, a signal acquiring unit and a processing control unit. Some main specifications of the DWL system are presented, which include laser with 1 064 & 532 nm wavelengths and 400 & 300 mJ pulse energy, 20 Hz repetition rate and less 0.5 mrad divergence, telescope with 1~3 mrad FOV, two different PMT R3236 & H7680 and two different amplifier VT120 & Phillips777 for 1 064& 532 nm signal detecting, filters with 1 064 & 532 nm center wavelength they have 1 nm bandwidth, even different data acquiring cards and so on. The fundamental principles and key techniques o